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3. Redevelopment of Lots: On lots which have been previously platted and developed, where the structures have been removed or destroyed to more than 50% of the current market value, up to 35% of the total DBH-inches of all significant trees and up to 15% of the total DBH-inches of all heritage trees may be removed for the installation of utilities, driveways, and building pads without tree replacement or resolution. 4. Significant trees in excess of the limitations of this Section may be removed, provided all trees removed in excess of said limitations shall be replaced in accordance with the Tree Replacement Formula. G. Tree Replacement Formula: Replacement of removed or disturbed trees in excess of the that which is allowed under a tree preservation plan shall be according to the following guidelines: 1. Significant Trees: Significant trees shall be replaced at the ratio of 0.5 caliper inch per 1 DBH- inch removed. 2. Heritage Trees: a. Due to their inherently greater value, heritage trees shall be replaced at a ratio of 2 caliper inches per DBH-inch. b. For each heritage tree saved, the developer may receive credit towards the required replacement trees. This credit will be at a rate of 2 caliper inches for each DBH-inch saved. To receive this credit, the applicant must demonstrate that extraordinary measures have been taken to preserve the heritage trees that otherwise would not be saved. 3. Required replacement trees shall be planted on the site being developed. The applicant may also request approval to plant replacement trees on boulevards, at the discretion of the City. 4. Minimum sizes for replacement trees shall be: a. Deciduous Trees: 3-inch caliper b. Coniferous Trees: 6 feet in height 5. Replacement trees shall be from balled and burlapped, certified nursery stock as defined and controlled by MN Stat. 18.44 through 18.61, the Plant Pest Act, as may be amended from time to time. Replacement trees may also be from bare root stock, provided the trees are planted no later than May 15th in any year, and the planting is inspected by the City. 6. Replacement trees shall be covered by a minimum 2-year guarantee. 7. Replacement trees shall be of a species similar to other trees found on the site where removal has taken place. Selection of replacement tree types for use on public sites shall be at the sole discretion of the City. 8. Where heritage trees have been removed, replacement trees shall consist of the same species as the removed heritage tree, or a tree that has the same potential value as the removed heritage tree. This value shall be certified by a certified forester or arborist. For the purposes of this paragraph, value is defined as a species which has the same growth and life potential as the removed tree. 1011.04 • Tree Preservation and Restoration in All Districts • Page 5 of 6